Physics 201 help needed

KK, so just working out some problems in my book to try and prepare for my final on monday. I have been progressing through all of the material fairly easily, I understand most of it but the below problem is giving me trouble, I can't seem to find the answer, any1 wanna take a crack at it? Thanks!

At very low temperatures, the molar specific heat CV of many solids is approximately CV = AT3, where A depends on the particular substance. For aluminum, A = 3.15 × 10-5 J/mol-K4. Find the entropy change for 6.00 mol of aluminum when its temperature is raised from 7.00 K to 14.0 K.


Thanks in advance for anyone who can help me with this, I appreciate it!